topical authority

Topical authority is a measure of how trustworthy your website appears to be when it comes to a particular topic. The more high-quality content you have on your website, the more topical authority you will have.
The best way to build trust in your content and make yourself seem like an expert is by writing well-researched and thorough articles that cover the breadth and depth of your discipline. Doing so, can help with SEO, but more importantly, the UX of the site because it will signal to readers that you are a trusted source for information on the subject.